Favre sits out practice

Brett Favre did not participate in Wednesday's practice as the Vikings tried to get the inflammation in the quarterback's passing elbow to go down before Sunday's game against Dallas at Mall of America Field.

Favre has been dealing with tendinitis in recent weeks and said before the practice he would be open to ending his NFL-record starting streak if he felt his presence on the field was hurting the team. The issue for Favre is that he needs to rest the elbow but every practice he misses means less time for him to work with a group of wide receivers he's still trying to get on the same page with.

This includes Randy Moss, who was obtained from New England last week and caught a touchdown pass in the Vikings' loss to the New York Jets on Monday night.

Meanwhile, rookie cornerback Chris Cook (knee) returned to the field today and did limited work.

Cook said he is "definitely" pushing to play Sunday and there appears a good chance he will take over for Cedric Griffin (out for season with torn ACL) as the starting right corner once he is ready. Cook suffered a meniscus tear in his left knee on Sept. 26 against Detroit and underwent arthroscopic surgery.The Lions game was his first back after tearing his right meniscus in the preseason.

Asked about possibly starting, Cook said: "It's a good likelihood. I won't say that it's my job because it's definitely not right now. We have a lot of good guys that can play. We just brought Frank Walker in and we still have Lito [Sheppard] and Asher [Allen] so it's a battle."

The Vikings had a short practice today as they returned after only one day of rest following the Monday night game. Teams ordinarily have Monday and Tuesday away from the field before starting practice on Wednesday.

Safety Alan Ball (shoulder), wide receiver Dez Bryant (ribs, ankle), linebacker Bradie James (knee) and defensive end Igor Olshansky (knee) did not take part in practice for the Cowboys. Tight end Martellus Bennett (ankle) was limited and fullback Chris Gronkowski (groin) was listed but did not miss any practice time.